package collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

/**泛型的演示*/
public class GenericDemo {
    public static void main(String[] args) {
        Collection<Point> c=new ArrayList<>();
        c.add(new Point(1,2));
        c.add(new Point(3,4));
        c.add(new Point(5,6));
        c.add(new Point(7,8));

        Iterator<Point> it=c.iterator();
        while (it.hasNext()){
            Point p=it.next();
            System.out.println(p);
        }
        for(Point p:c){
            System.out.println(p);
        }




        /*
        Collection<String> c=new ArrayList<>();//泛型集合
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("four");
        c.add("five");

        Iterator<String> it=c.iterator();
        while (it.hasNext()){
            String str=it.next();
            System.out.println(str);
        }

        for(String str:c){
            System.out.println(str);
        }

         */
    }
}
